Drilling machine for railroad rail



FIG. 1 is a left side perspective view of a drilling machine for railroad rail showing my design;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a top plan view thereof. 

The ornamental design for a drilling machine for railroad rail, as shown and described. 